An international research team has uncovered 270-million-year-old fossil tracks belonging to a dog-like predator ...

“The orange mutation affects a gene on the X chromosome. In mammals, males have a single X chromosome and therefore one copy ...

Bats achieved true flight through unique evolutionary changes. A new study reveals how bats repurposed existing genes and ...

The smallest mammals on Earth prove that survival, agility, and a voracious appetite have nothing to do with scale.

Sexual behavior is one reason why female mammals typically live longer than their male counterparts, according to a new study ...

It's been a doozy of a year for marine mammals, who have been dying in record numbers along the California coast. Volunteer ...

The U.S. will tighten regulations on seafood imports starting in 2026 to protect marine mammals from harmful "bycatch" ...

Flowing through sandstone bluffs, cottonwood bottoms, and wide floodplains, the Red River of the South winds hundreds of ...

Their fur is so soft it almost led to their extinction, but otters’ recovery has been a boon to Pacific kelp forests, a key ...

The bluff at La Jolla Cove in San Diego is covered with pelicans and cormorants; below, some two dozen sea lions lounge on a ...

Earth's waters host diverse mammals like dolphins, whales, and manatees. These creatures possess unique adaptations for ...

Australia declares extinction of the Christmas Island shrew (Crocidura trichura), the country's last native shrew species.